NSF Review

1
EVLA Monitor Control
2
Contents

• Transition System Final System
• EVLA MC Components
• Carryover from Transition System to Final System
• Architecture Data Flows Transition Final
  System
• Selected Subsystems
• The Alert Subsystem
• Correlator Backend, Fast Formatter, TelCal,
  Post-Processing
• User Interfaces Screen Shots

3
EVLA Data Flow - Overview
4
Transition System vs. Final System

• In broad terms, there will be two major versions
  of the EVLA Monitor Control System a
  Transition System and a Final System
• The Transition System bridges the gap between the
  old Modcomp-based VLA Control System and the
  final version of the EVLA Monitor Control
  System, while maintaining operational
  capabilities
• The Transition System will be responsible for
  controlling a wide array of old and new hardware
  EVLA Antennas, VLA Antennas, the VLA
  Correlator, and the prototype WIDAR correlator
• The Transition System will incrementally shift
  its software architecture toward the desired
  architecture of the final system

5
Selected Transition System Milestones

• Support for EVLA antenna hardware development
• Use of EVLA Antennas in scientific observations
• Monitor and control of EVLA antennas
• Retirement of the Modcomp-based VLA control
  system
• Monitor and control of VLA antennas (nearly done)
• Monitor and control of VLA correlator
• Distribution of VLA correlator output within EVLA
  MC
• Formation writing of VLA format archive records
• Support WIDAR prototype correlator
• Implement target architecture of final system

6
Retirement of the Modcomp-based VLA control system

• Monitor and control of VLA antennas end of Q2
  2006
• Monitor and control of VLA correlator Q4 2006
• Distribution of VLA correlator output Q4 2006
• Formation writing of VLA format archive records
  Q1 2007
• Parallel operation testing Q2 2007

7
Current State of the Transition System
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Transition vs. Final SystemComponents Carryover
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EVLA MC Transition System Data Flows Status
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EVLA MC Final System Data Flows
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The Alert Subsystem
Bryan Butler Rich Moeser
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EVLA MC, Deployment
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Screenshot of the Array Operators Screen
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A module subsystem screen the ACU Screen
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Screenshot of the Device Browser
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Latest software releases

• Stable builds web page

http//www.aoc.nrao.edu/asg-internal/jnlp/
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Backup Slides

• Fast Formattter, TelCal, Post-Processing

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EVLA MC Final System Data Flows
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Fast Formatter, TelCal, Post-Processing Worst
Case Scenario